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Can anyone list 10 advantages and disadvantages of friction?
give 10 examples of friction in our daily life.
A weightlifter rubs powder in the hands before lifting a weight so as to increase the amount of friction in between the hands and the rod. This helps the lifter to have a better grip on the rod.
How can the amount of friction increase if powder is applied? Isnt it a lubricant?
What are the methods of reducing friction? Explain .
why does rough surface have greater friction then smooth surface?
can u solve this riddle:
In some situations, I oppose the motion in other situation, I facilitate the motion but, i always oppose the relative motion between two moving surfaces. put some lubricant, and i become small there. Make the moving surfaces rough i make the movement tough. I may be- static, sliding or rolling but whenever two surfaces are in motion I am always there, Tell me who I am!!!!
What are the problems faced by people living in desert areas?
explain why sliding friction is less than static friction?
write various techniques adopted by human beings to reduce energy losses due to friction
What role does friction play in the sport of your choice?
Explain Friction as necessary evil?
Why do painter uses and paper in white washing the walls and in polishing doors?
friction a necessary evil
IMAGINE THAT FRICTION SUDDENLY VANISHES. HOW WOULD LIFE BE AFFECTED. LIST TEN SUCH SITUATIONS
give three examples of increase and decrease friction.
WHAT ARE THE CHEMICALS PRESENT IN MATCHSTICK?
name two solid lubricants and state where they are used
give example to show that friction is both a friend and a foe?
Why is rolling friction less than sliding friction??
What is the relationship among (a) magnitude of friction and the weight of a body, (b) friction and nature of surfacesin contact with each other, (c) friction and the area of the surfaces in contact with each other?
What are the differences between sliding and rolling friction ? ...(atleast 3)
Imagine a life without friction. Write the consequences, both pros and cons.
Explain why the sole of our shoe wear out.
why is 'static friction'called a self adjusting force?
A coin of mass 20 g is pushed on a table. The coin starts moving at a speed of 25 cm/s and stops in 5 seconds. Find the force of friction exerted by the table on the coin.
how 2 make webpages on pollution i jst need d HTML code plzz
how does friction helps us in walking?
Water comes out more slowly from upstairs tap than from a similar
why spaceships are provided with heat shields
Arrange in ascending order-
Rolling friction; Sliding friction; Static friction; Kinetic friction; Fluid friction
how and where is frictional force active when someone is drawing water from a well?
what will happen if friction suddenly vanishes from our life
A car of mass 1200 kg is moving on the road at the speed of 60 km/h.If the coefficient of friction is 38 and the normal force is 50 N, then how can I find the frictional force acting on it?
why is rolling friction less than sliding friction?
Why do we sprinkle fine powder on the carom board while playing?
Is there any difference between friction and frictional force?
mention three effects (consequences) of friction.
explain why the handles of motor cyclenr covered with a rubber sheet with spikes????
60g of ice at 0°C is added to 20g of water at 40°. The final temperature attained by the mixture is (given
is friction a friend or foe?
A car travels a certain distance with a speed of 50 km/hr and returns with a speed of 40 km/hr. Calculate the averagespeed for whole journey.
GIVE REASON WHY POWDER IS SPRINKLED ON THE CARROM BOARD
what is streamlining ??
Friction arises due to the interlocking of depressions and__________present in a body.pls fill in the blank.
why do we slip while stepping on a banana peel?
Why is friction called a perverse force ?
Why are the worn out tyres discarded?
why do painters use sand paper before painting the doors??
imagine thet friction suddenly vanishes,how would life be affected.list ten such situation
What role does friction play in the sport of your choice? Collect some pictures of that sport in action where friction is either supporting it or opposing it. Display these pictures with proper captions on the bulletin board of your classroom
on what principle do ball bearings work
'When we walk, we press the ground in the backward direction, using our feet. Since friction acts in the opposite direction of motion, it pushes us forward. Hence, we are able to walk.'I dont understand this.. explain???
Merit nation help help I need this answer quickly
kabaddi players rub thier hands with the soil before the game starts
how does friction acts when we are writing with a chalk in blackboard?
Two bodies in contact but not moving with respect to each other can exert
1.no friction on each other,
2.static friction on each other,
3.sliding friction on each other or
4.rolling friction on each other.
why are grooves provided in the soles of shoes
Why does the sportsmen use shoes with spikes?
why do gymnasts apply a coarse substance to their hands
Why do spaceships are provided with heat shield?
Give two examples where friction is (a) Useful (b) A nuisance.
Why friction is a necessary evil?
why are the bodies of birds streamlined
an object rests on a horizontal frictionless surface . A horizontal force of magnitude F is applied.This force produces an accleration:
A) only if F is larger than the weight of the object.
B) only while the object suddenly changes from rest to motion.
D) only if the inertia of the object decreases
(a) rollers are used for transporting luggage.
(b) metal chains are wrapped on tyres when they run on icy roads.
(c) aeroplanes and car bodies, are made more pointed along their fronts.
(d) talcum powder is put on a carrom-board before a game.
why metal chains are wrapped on tyres when they run on icy roads ?
if you try to hold a glass with oil on your hands it tends to slip.why?
what difference will you hear in a sound if there is an increase in
a)amplitude of vibration
b) frequency of vibration
WHY DO WE SLIP ON A MUDDY ROAD AND WHEN WE STEP ON A BANANA PEEL?
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